export default {
  /**
   * 设置cookie
   * @param {string} key
   * @param {string|number} value
   * @param {number} day
   */
  set(key, value, day) {
    let Days = day ? day : 30,
      exp = new Date();
    exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
    document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString();
  },
  /**
   * 获取cookie
   * @param {string} name
   * @returns
   */
  get(name) {
    let arr,
      reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");

    if (arr = document.cookie.match(reg)){
      return unescape(arr[2]);
    } else {
      return null;
    }
  },
  /**
   * 删除cookie
   * @param {string} name
   */
  del(name) {
    let exp = new Date(),
      cval = getCookie(name);
    exp.setTime(exp.getTime() - 1);
    if (cval != null) {
      document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();
    }
  }
}
